/*
 * Copyright 2017 Crown Copyright
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package stroom.index.impl.analyzer;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.core.StopAnalyzer;
import org.apache.lucene.analysis.core.WhitespaceAnalyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import stroom.index.shared.AnalyzerType;

public final class AnalyzerFactory {
    private AnalyzerFactory() {
        // Factory so private constructor.
    }

    public static Analyzer create(final AnalyzerType analyzerType,
                                  final boolean caseSensitive) {
        switch (analyzerType) {
            case KEYWORD:
                return new KeywordAnalyzer(caseSensitive);
            case ALPHA:
                return new AlphaAnalyzer(caseSensitive);
            case ALPHA_NUMERIC:
                return new AlphaNumericAnalyzer(caseSensitive);
            case NUMERIC:
                return new NumericAnalyzer();
            case WHITESPACE:
                return new WhitespaceAnalyzer();
            case STOP:
                return new StopAnalyzer();
            case STANDARD:
                return new StandardAnalyzer();
        }

        return new KeywordAnalyzer(true);
    }
}
